I don't know, some of the expectations of this gen have been inflated. The jump from PS3-PS4 was essentially 720p to 1080p, whilst typical performance targets remained at 30 FPS. That's a doubling of resolution with the same performance level. PS5 is expected to generally hit 1440/60 or 2160/30, meaning either a doubling of both pixel density and frame rate, or a quadrupling of pixel density. On top of this, we're also expecting computationally heavy lighting effects like RTX to be included - that's a bigger baseline step than previous generations.